The MapMachine provides in one site a gazetteer, an atlas, and the creation of interactive maps. Map users may search by place with the results presented on a map, or they can zoom in on a world map to locate the desired spot or region.
http://maps.nationalgeographic.com/maps
Perry-Castañeda Library Map Collection
"Includes collection of online CIA and historical maps. Worldwide coverage, with a focus on United States and Texas maps. FAQ and links to maps at other sites."
http://www.lib.utexas.edu/maps/index.html
"Includes collection of online CIA and historical maps. Worldwide coverage, with a focus on United States and Texas maps. FAQ and links to maps at other sites."
http://www.lib.utexas.edu/maps/index.html